Home / 18,219.56-25,143.04-10,664.52

Finding the Fourth Proportional to 18,219.56, 25,143.04 and 10,664.52

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Solution

The fourth proportional to 18,219.56, 25,143.04 and 10,664.52 is: 14,717.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.56 : 25,143.04 = 10,664.52 : x
  2. Step 2: Convert to fraction form
    18,219.56/25,143.04 = 10,664.52/x
  3. Step 3: Cross multiply
    18,219.56x = 25,143.04 × 10,664.52
  4. Step 4: Simplify right side
    18,219.56x = 268,138,452.94
  5. Step 5: Solve for x
    x = 268,138,452.94/18,219.56
  6. Step 6: Final answer
    x = 14,717.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.